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COLUMBIA ANALYTICAL SERVICES, INC <br /> QA/QC Report ' <br /> Client EMCON Associates Date Received 06/11/93 <br /> I Project EMCON Project No OG71-038 01 Service Request No SJ93-0776 <br /> ARCO Facility No 2168 <br /> Initial Calibration Verification <br /> Halogenated Volatile Organic Compounds <br /> I EPA Methods 5030/601 <br /> Nanograms <br /> Date Analyzed 06/14/93 <br /> EPA <br /> Percent <br /> Recovery <br /> True Percent Acceptance <br /> Analyte Value Result Recovery Criteria <br /> Chloromethane 50 544 109 D-193 <br /> Vinyl Chloride 50 500 100 28-163 <br /> Bromomethane 50 46 2 92 D-144 <br /> Chloroethane 50 51 1 102 46-137 <br /> Trichlorofluoromethane (Freon 1 1) 50 41 9 84 21-156 <br /> 1,1-Dichloroethene 50 55 9 112 28-167 <br /> Methylene Chloride 50 348 70 25-162 <br /> trans-1,2-Dichloroethene 50 442 88 38-155 <br />►i 1 1-Dichloroethane 50 45 0 90 47-132 <br /> Chloroform 50 448 90 49-133 <br /> 1,1,1-Trichloroethane (TCA) 50 494 99 41-138 <br /> Carbon Tetrachloride 50 52 5 105 43-143 <br /> 1,2-Dichloroethane 50 44 8 90 51-147 <br /> Trichloroethene (TCE) 50 444 89 35-146 <br /> 1 2-Dichloropropane 50 460 92 44-156 <br /> F Bromodichloromethane 50 440 88 42-172 <br /> trans-1,3-Dichloropropene 50 65 4 131 22-178 <br /> cis-1,3-Dichloropropene 50 480 96 22-178 <br /> 1,1,2-Trichloroethane 50 47 6 95 39-136 <br /> Tetrachloroethene (PCE) 50 48 1 96 26-162 <br /> Dibromochloromethane 50 45 0 90 24-191 <br /> Chlorobenzene 50 403 81 38-150 <br /> Bromoform 50 448 90 13-159 <br /> 1,1 ,2,2-Tetrachloroethane 50 46 6 93 8-184 <br /> 1,3-Dichlorobenzene 50 50 3 101 7-187 <br /> 1 4-Dichlorobenzene 50 48 8 98 42-143 <br /> 1,2 Dichlorobenzene 50 38 6 77 D-208 <br /> D Detected <br /> 1 <br /> Approved by 21- <br /> Date _ <br /> 13 <br />